If 10 men, working 7 hours a day dig a trench 147 m long, how many men working 8 hours a day will dig a trench 168 (of the same breadth and depth as the first in the same number of days) ?
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Answered by
21
Working 7 hours a day 147 m long trench can be dug by = 10 men.
Working 1 hour a day 147 m long trench can be dug by = 10*7
Working 1 hour a day 1 m long trench can be dug by = (10*7)/147
Working 8 hours a day 1 m long trench can be dug by = (10*7)/(147*8)
Working 8 hours a day 160 m long trench can be dug by = (10*7*160)/(147*8)
= 11200/1176
= 9.523
As the men cannot be in decimal or fraction, so, the answer is 10 men.
Answered by
2
Answer:
10 men
Step-by-step explanation:
In question they already tell the answer
( the same breath and depth as the first in the same number of days)
So, the answer is same which is wrote in the question.
Therefore, 10 men working 8 hr a day and dig 168 m long.
Your answer if I am correct
So tell me in comment
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